freebsd-dev/sys/cddl/contrib/opensolaris/uts
Alexander Motin 178777f516 Avoid zero-sized kmem_alloc() in vdev_compact_children().
The device evacuation code adds a dependency that
vdev_compact_children() be able to properly empty the vdev_child
array by setting it to NULL and zeroing vdev_children.  Under Linux,
kmem_alloc() and related functions return a sentinel pointer rather
than NULL for zero-sized allocations.

This is a part of ZoL port of device removal patch:

commit a1d477c24c
Author: Matthew Ahrens <mahrens@delphix.com>
Ported-by: Tim Chase <tim@chase2k.com>

Approved by:	re (kib)
MFC after:	1 week
2018-10-12 16:55:28 +00:00
..
aarch64
arm
common Avoid zero-sized kmem_alloc() in vdev_compact_children(). 2018-10-12 16:55:28 +00:00
intel
mips
powerpc
riscv